EP 3692348 B1 20230607 - METHOD AND SYSTEM FOR DETERMINING A NUMBER OF COLOUR QUALITY INDICATORS FOR A COLOUR CONTROL OF A VARNISH
Title (en)
METHOD AND SYSTEM FOR DETERMINING A NUMBER OF COLOUR QUALITY INDICATORS FOR A COLOUR CONTROL OF A VARNISH
Title (de)
VERFAHREN UND SYSTEM ZUM BESTIMMEN EINER MEHRZAHL VON FARBGÜTE-INDIKATOREN FÜR EINE FARBKONTROLLE EINES LACKS
Title (fr)
PROCÉDÉ ET SYSTÈME DE DÉTERMINATION D'UNE PLURALITÉ DES INDICATEURS DE QUALITÉ DE COULEUR POUR UN CONTRÔLE COULEUR D'UN VERNIS
Publication
Application
Priority
- EP 17195024 A 20171005
- EP 2018077048 W 20181004
Abstract (en)
[origin: WO2019068828A1] The invention relates to a method for determining a plurality of colour quality indicators for a colour control of a paint, in which colorimetric coordinates of a colour reference and colorimetric coordinates of the paint are determined for a plurality of surface elements painted with the paint, each with a spectrophotometer for a number of measurement geometries and a number of light sources, wherein, for every measurement geometry of the number of measurement geometries and every light source of the number of light sources, respective colour differences are calculated from the colorimetic coordinates of the colour reference and the respective colorimetric coordinates of the paint for the plurality of surface elements painted with the paint, wherein the respective colorimetric coordinates are scaled with a respective weighting factor, wherein each of the plurality of colour quality indicators is determined at a scale value of a predefined scale by means of a mapping of functional values defined by a mapping rule, said functional values each being determined for the number of measurement geometries and the number of light sources by means of a mathematical correlation - specific to the respective colour quality indicator - between colour differences of at least one of the surface elements. The invention also relates to a corresponding device.
IPC 8 full level
G01J 3/50 (2006.01); G01J 3/10 (2006.01); G01J 3/46 (2006.01)
CPC (source: EP KR US)
G01J 3/10 (2013.01 - EP KR US); G01J 3/463 (2013.01 - EP KR US); G01J 3/504 (2013.01 - EP KR US); G01J 2003/102 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019068828 A1 20190411; CA 3078284 A1 20190411; CN 111433575 A 20200717; CN 111433575 B 20231117; EP 3692348 A1 20200812; EP 3692348 B1 20230607; ES 2951696 T3 20231024; JP 2020536246 A 20201210; JP 2023171879 A 20231205; KR 20200067851 A 20200612; MX 2020004368 A 20201019; US 11391631 B2 20220719; US 2021404876 A1 20211230
DOCDB simple family (application)
EP 2018077048 W 20181004; CA 3078284 A 20181004; CN 201880078191 A 20181004; EP 18780131 A 20181004; ES 18780131 T 20181004; JP 2020519108 A 20181004; JP 2023170508 A 20230929; KR 20207012365 A 20181004; MX 2020004368 A 20181004; US 201816753483 A 20181004